Why is Saitama so strong?

While there are many One-punch man theories as to the origin of Saitama’s strength, some are more plausible than others.

One-punch man fans have been wanting that question answered since the first episode showed off Saitama’s monstrous strength. So far, the two anime seasons have yet to answer this question, leading fans to find their own answers.


One-Punch Man: Why is Saitama so strong?

Saitama: Monster or man?

Former human Gouketsu after eating monster parts and becoming a monster (Image via JC Staff animation)
Former human Gouketsu after eating monster parts and becoming a monster (Image via JC Staff animation)

One theory regarding the origins of One-Punch Man’s strength is that he is not a One-Punch. Man at all, but a monster. This would explain how Saitama is still able to withstand the toughest monsters and challenges. However, why not have One-punch manThe main antagonists of, the Monster Association (MA), tried to take Saitama for themselves if that’s true?

One answer could be that the MA fears Saitama’s strength and doesn’t know whether or not he will leave humanity. If that was the case, we can assume that Saitama is stronger than the whole association.

One-punch man Season 2 already showed Saitama defeating Garou with one punch, with Garou being someone the MA wants to bring to his side. Saitama defeating Garou (who the MA says is strong enough to join them) adds even more credence to the theory.


The power of dedication…?

Mumen Rider as seen in season 1 of the One-Punch Man anime (Image via Madhouse Animation)
Mumen Rider as seen in season 1 of the One-Punch Man anime (Image via Madhouse Animation)

Another fan theory circulating is that all the heroes of One-punch man were simply devoting themselves to a non-human point. This results in their inhuman strength which makes them feel more distant from men than from gods.

Although many heroes support this theory (Saitama, King, Genos are a few), one glaring example highlights the theory. Mumen Rider is touted as one of the most dedicated heroes of all One-punch manyet he has almost no strength.

Mumen Rider gets beaten up by Garou as seen in One-Punch Man anime season 2 (Image via JC Staff)
Mumen Rider gets beaten up by Garou as seen in One-Punch Man anime season 2 (Image via JC Staff)

There is no other One-punch man hero with Mumen’s dedication, so his lack of superhuman strength shows the major flaw in this theory. While this is a great explanation for those with a force worthy of their dedication, Mumen is too big an issue to ignore here. There is one final theory that may explain why Saitama’s power is so unique in One-punch man.


Saitama: Not from this planet

King Boros in his battle form as seen in the One-Punch Man Season 1 anime's final story arc (Image via Madhouse Animation)
King Boros in his battle form as seen in the One-Punch Man Season 1 anime’s final arc (Image via Madhouse Animation)

This last theory is probably the most plausible given the flaws found in other One-punch man Saitama’s Theories of Force.

In the One-punch man Season 1’s final arc, we see Saitama fight an alien leader named King Boros. Boros is a surprisingly good match for Saitama in this fight, taking what Saitama gives him and giving it back immediately. Saitama ends up winning by getting serious, but Boros giving him an even fight shouldn’t be ignored as a result.

Saitama uses his monstrous strength to destroy a meteor, as seen in season 1 of the One-Punch Man anime (Image via Madhouse Animation)
Saitama uses his monstrous strength to destroy a meteor, as seen in season 1 of the One-Punch Man anime (Image via Madhouse Animation)

While Boros is revealed to be part of Saitama’s dream, the symbolism and message here may be as real as Saitama himself. Perhaps ONE (author of One-punch man manga) wants to tell us that Boros was a match for Saitama because they are the same as each other. That is, super-powered aliens who ended up on Earth for one reason or another.

Although apparently superficial, this theory responds to many One-punch man questions without creating more. This explains why Saitama’s simple training regiment has done wonders for him while making other members of humanity laugh. This also explains why the Hero Association was confused about Saitama’s results, even implying that they’ve never seen anything like this before.


Final Thoughts

Whatever the actual answer, theorizing about it is the best thing to do. While there are many different fan theories out there, some are certainly more airtight and probable than others. Maybe even one of the fan theories ends up being right.

Until One-punch man Season 3 airs, we won’t know, and even then season 3 may not have our answer. Be sure to follow all One-punch man anime news to make sure you don’t miss a thing when the series returns.


Q. Do you think Saitama is a human, or something else?

28 voices so far

Profile Picture

Comments are closed.